Alveoli are found in lungs and exchamge O2 and Co2 !!
so answer is last one !!
it would be B. the intertidal zone only cover by high tides
Answer:
the cisterna chyli is the dilated origin of the thoracic duct, which receives the right and left lumber lymphatic trunks and the intestinal lymphatic trunk.
Answer:
this tree tells us that the amnion is found in mammals, lizards, snakes, crocodiles, and birds
Explanation: